English for chemists

Section III
Ex. 1. Respond to the following statements. Use the expressions: quite so; I'm of the same opinion; really; it is not quite so; you are absolutely wrong.

1. 
   It is sometimes difficult to make the reaction procccd faster.
   

2. 
   There is a tremendous number of factors affccting the reaction.
   
3. 
   Catalysts are important only in chcmical industry. 4. I hear your supervisor has been awarded the State prize for his work. 5. They say you never attend lectures in history. 6. Borodin was not only a chemist
   

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but an outstanding Russian composcr as well. 7. Prof. N has been appointed head of your laboratory, hasn’t he?
Ex. 2. Translate the sentences into English.
1. Говорят, вы уже на втором курсе? — Не совсем так, я еще н первом. 2. Наш лектор — замечательный ученый. — Действительно.
3. Катализатор влияет на реакцию, но и сам изменяется. — Вы абсо­ лютно неправы, в конце реакции катализатор должен восстанавливаться в первоначальном виде. 4. Катализаторы могут участвовать и в биоло­ гических процессах.— Совершенно верно. 5. Катализаторы более важ­ ны в промышленности, чем в лаборатории. — Я того же мнения.
Ex. 3. Make up short dialogues according to the model.
Model: — A statement.

— A question.

— An answer.

— A statement.

Example: — My supervisor has published a new articlc.

— What is the subject of his investigation?

— Ion-selective electrodes.

— It’s a very promising field.

Ex. 4. Give detailed answers to the following questions:
1. What is the rate of a reaction? 2. What chemical factors afreet the course of a reaction? 3. What physical factors influence the speed of a reaction? 4. What is catalysis? 5. In what way docs the presence of a catalyst affect the reaction rate?
Ex. 5. Discuss the following topics:

1. 
   Some Examples of Slow and Fast Reactions.
   

2. 
   Factors Influencing the Rate of Reactions.
   
3. 
   Catalysis.
   

WHAT IS IT?

A substancc which can increase the rate of a chcmical reaction without itself undergoing permanent chcmical change. -